Turning device



Aug. 23, c. s- NELSON TURNING DEVICE s Sheet 1 Filed Sept. 14. 1926 nom7 ,Aug- 3' c. s. NELSON TURNING DEVICE Filed.Sept .14. 1926 3Sheets-Sheet 2 enter.

' Aug. 23, 1927.

C. S. NELSON 'TURNING DEVICE v Filed Sept 14. 1926 3 Sheets-Sheet 5 9[QC n1 0! Char/ea 3. Nelson 7 chine the pole is turned Patented Au 23,1927.

UNITED STATES 1,639,856 PATENT OFFICE.

CHARLES S. NELSON, OF SANDPOINT, IDAHO, ASSIGNOTR TO MALVEBN I1. BRUCE,

-01 SAN DPOINT, IDAHO.

TURNING DEVICE.

Application filed September 14, 1926. Serial No. 135,328.

My present invention relates to an improved pole turning machine whichwhile adapted for use 111 various ways and for different purposes isespecially designed for i the puncturing machine preparatory totreatment of the punctured pole by a liquid wood preservative.Preferably the base or butt end of the pole is thustreated with the woodpreservative and therefore the pole is supported in the machineand'turned on its longitudinal axis to successively present differentareas of its surface for action of the puncturing machine. The pole isretained in stationary position during the operation of the puncturingmachine, and after each operation of the puncturing maby the mechanismof my invention.

As is well known, to insure uniformity in piling and to fashion acompact pile on a railroad car, the customary practice observed is toload the poles on the car or truck with the larger or buttends of thepoles at alternate ends of the car. To meet this condition my inventioncontemplates the use of spaced, duplex turning devices for the poleadapted for selective use on the butt ends of the poles, and undermanual control.

The poles are conveyed by suitable means, as a. roller conveyer, to theturning machine, either their butt ends forward, and may be fedlongitudinally to and through either end of the machine,- bed. p

In carrying out my invention'I utilize opposed pairs of endless chainshaving resilient supports, with their workingfiights disposed atopposite sides of'the pole and traveling in opposite directions forfric-v tionalengagement with the surfaceof the pole to turn it in aclockwise direction .on its longitudinal axis, and the inventionconsists in certain novel combinations and arrangements of parts forthis purpose as will hereinafter be more fully pointed out and claimed,l

In the accompanying drawings I have ilvlustrated one complete example ofthe physical embodiment of my invention wherein the parts are combinedand arranged acends or their smaller cording to the best mode, I havethus far devised for the practical application of the principles of myinvention.

Figure 1 is a view in side elevation show! ing a portion of a pole inthe turning machine with the spaced, duplex turning devices, and alsoindicating the general arrangement of the pole puncturing or perforatingwheel and its operation on the pole Figure 2 is an enlarged detailsectional 85 view of the ratchet mechanism forimparting the intermittentmovement to the turning chains, through the operating shaft.

Figure 3 is an end view of the machine as seen from the right in Figure1, the chains being'shown by full lines in inoperative position and bydotted lines in operative position. I

Figure at is a perspective view of one of the endless chains and itspivoted, laterally swinging, and resiliently retained frame.

In order that the general arrangement and relation of parts may readilybe understood I have illustrated a portion of a pole as P, supported onits bed consisting of comple' mentary pairs of conical or, taperedrollers 1 and 2 on the'shafts 3 which are'suitably spaced and journaledtransversely of the main frame l. These supporting rolls are operated bya longitudinally extending drive chain 5 in connection with sprockets 6on the roller shafts, and the drive chain is used to convey the pole tothe bed from either the right end or the left end of the machine inFigure 1. M The stationary pole is supported in its bed for operation ofa puncturing machine that includes a rotary perforating or puncturingwheel 7 supported above the pole by its frame 8 and designed to travelor recip- 9 rocate longitudinally of the pole and puncture its surface,After, each operating stroke of the wheel the'pole is turned on its axisto present an imperforate orunp'unctured area in position for operationof the puncturing wheel. j

The duplex turning mechanism is indicated as a whole by the numerals 9and 9 and 10, 10 in Figure 1, the former mechanism being used when thebutt end of the 105 of complementary of each pair being arranged atopposite sides of the pole and adapted to turn the pole;by frictionallyengaging its opposite. sides with such force as to partially rotate iton its longitudinal axis.

The turning devices are of complementary construction and each device ormember of a pair comprises an endless chain 11' (Figure l) havingfriction lugs 12 carried by its links. In Figure 3 and in Figure 4 theworking flight of the device 9 moves downwardly and the working flightof the chain'of the device 9 moves upwardly at the opposite side of thepole. The friction lugs on the working flights of the chains thus engagethe opposite sides of the-pole and turn it on its axis.

Eachchain is provided with a drive sprocket 13 on the chain or turningshaft let, and an idle sprocket 15 on its shaft 16 car ried by achain-frame that comprises a pair angular arms 17 and-i7 pivoted attheir lower ends 18 on the turning shaft 14. connected together as bypins 19 and 19' and are adapted to swing outwardly from the pole toinoperative position, as shown in full lines, to permit placing of thepole in position for puncturing, and for permitting withdrawal of thepole after puncturing. The two opposed members as 9 and 9 are drawninwardly or swung inwardly on their pivots toward the pole. as seen bydot- -ted=lines m r ghts, to ope a tiveposit-ion.

When in operative position the frames are resiliently held or retainedto compensate for a knot or other irregularity on the exterior surfaceof the pole, and as a chain encounters such an irregularity its frame ispermitted to swing as required, from the pole, but yet retain itsfrictional relation thereto.

For this purpose the turning devices are equipped with a pair of springs20 and 21 anchored to the pins 19' of the chain frames, and cables 22and 2-3 are connected to the respective springs, and pass around drums24: and 25, the former for the devices 9, 9 and the latter for thedevices 10, 10 as shown in Figure l where the drums are carried by thedrum shaft 26 journaled insuitable bearings from the top of the mainframe above the pole. I

The turning devices are thus drawn to operative position by action ofthe drum shaft, drums and cables described, andwhen these cables arereleased, the turning devices are automatically swung outwardly from thepole to inoperative position.

For swinging the turning devices outwardly a drum 2'? (Figure 1) isprovided on the drum shaft 26 and the cable 28 is wound thereon as theturning devices are swung inwardly to the pole. This cable extends upwardly and over a pair of guide pulleys 29 These two arms are rigidly 36and control lever36 pivoted on the frame of the machine, and adapted tobe, adjusted inconneetion with a rack-frame 37.

A pair of clutches 88-and for selective useincontrolling a selected oneof the duplex turning devices, is provided on. the drum shaft, and theframe 40 may be manipulated to operate one clutch and at the same timedisconnect theother clutch.

"'Ti'i lfli'lttill' shaft 14 ezttendsalong tl gitudinal center of themain frame below the pole and is journaled inSuitablefibear-i ings asll. At one end, of; the machine: a worm transmission device 42 includingthe transversely disposed worm shaft 13 is connected with the chainshaft, and a gear couple 44 from the gear shaft 45 is driven through thebevel gear couple 46 from a ratchet shaft 47 journaled in bearings 48and extending parallel with the chain shaft.

-e len- The ratchet shaftis intermittently turned F igure 2 comprisingav series of spring pressed pawls 49 carried by the notched ratchet head50 that is keyed to theratchet shaft. A ratchet disk or cup 51 isloosely carried on the ratchet shaft for co-action with the pawls andthis disk is provided with a rigid, slotted lever arm 52 projectinglaterally therefrom. A link-motion .53 is connected to the lever armbandanextension slide rod 54 is pivoted to the link-motionas best seen inFigures 1 and 8. The slide rod '54, which is supported to reciprocatevertically, is actuated through the'connecting rod 55 that extendsupwardly to the eccentric disk '56 on theeccentric shaft 57 journaledtransversely of the machine at, the. top of the main frame. By means ofa gear couple 58 the eccentric shaft is connectedwith a suitable motoras 59 which, is controlledv in usual manner.

=In-Figure 1 it will be apparent that, the control devices for clutches,brakes, and operating mechanisms are compactly arranged for manipulationby the operator, who

stands at. the. side of the machine in posit1on for controlling theturning machlne. as the puncturing machine rides by means of its rollers60 on the tracks or track rails ,61

. extending longitudinally of the machine and supported .on top of themain frame above the pole. After the pole is placed upon its "by meansof a'ratchet mechanism shownjin lOO ill)

bed, including the spaced pairs of tapered rollers 1 and 2, its topportion is punctured by means of the reciprocating puncturing machine.After each working stroke of the puncturing machine the ratchetmechanism is actuated to transmit power to the turning chains, which areof course first moved to operative position, and the moving chains givea partial turn to the pole. After a partial turn, the turning devicesare released and their weights return to inoperative position, or theturning devices may be maintained in operative position ready for use,until the punctured pole is ready to be withdrawn from the machine andanother pole substituted therefor.

Having thus fully described my invention what I claim as new and desireto secure by Letters Patent is 1. The combination with a pole-supportingbed, of a pair of pivoted frames arranged on oposite sides of the bedand adapted to swing toward and from a vertical plane in which the axisof a pole lies, oppositely moving endless chains in said frames adaptedto frictionally engage the surface of the pole,

means for swinging said frames to operative position, and means forswinging said frames to inoperative position.

2. The combination with a pole supporting-bed of a chain shaft andoperating means therefor, a pair of frames pivoted on said shaft atopposite sides of the bed and adapted to swing toward and from avertical plane in which the axis of a pole lies, oppositely movingendless chains in said frames adapted to frictionally engage a pole inthe bed, and driving connections from said shaft to said chains.

3. The combination with a pole-supporting bed of a chain-shaft andoperating means therefor, a pair of frames pivoted on said shaft atopposite sides of the bed and adapted to swing toward and from avertical plane in which the axis of a pole lies,

endless chains supported in said frames and means for operating saidchains from the shaft, and resilient means for supporting the upper freeends of said chain-frames.

4c- The combination with a chain shaft, of a pair of laterally disposedframes pivoted on the shaft at opposite sides of the shaft and adaptedto swing toward and away from a vertical plane in which the axis of theshaft lies and endless chains in said frames, means on the shaft fordriving the chains, and resilient means for sup porting the free ends ofsaid frames.

5. The combination with a chain operating shaft, of a pair of oppositelyand laterally disposed frames pivoted thereon and adapted to swingtoward and away from a vertical plane in which the axis of the chainoperating shaft lies, endless friction devices supported in said framesand operative connections therefor on the shaft, means for swinging theframes to opera tive position and resilient means for supporting theframes in operative position.

6. The combination with a chain operating shaft, of a pair of oppositelyand laterally disposed frames pivoted thereon and adapted to swingtoward and away from a vertical plane in which the axis of the shaftlies, endless friction devices supported in the frames and operatingmeans therefor actuated from the shaft, means for swinging the frames tooperative position, and a counterweight mechanism for co-action with theframes as they swing to inoperative position.

7 The combination with a chain operating shaft, of a pair of oppositelyand laterally disposed frames pivotedthereon and adapted to swing towardand away from a vertical plane in which the axis of the shaft lies,endless chains moving in opposite directions, sprockets for said chainson said shaft and in said frames, means for swinging the frames tooperative position, and gravity actuated means for permitting the framesto fall away to inoperative position.

8. The combination with a chain shaft of a frame pivoted thereon andadapted to swing toward and away from a vertical plane in which the axisof the shaft lies and a sprocket in the frame, a sprocket on the shaftand a friction chain supported on said sprockets, a cable having aresilient connec tion to the free end of the frame, and means forwinding and unwinding the cable.

' 9. In a pole turning machine the combination with a chain shaft ofspaced, duplex pole-turning devices supported on the shaft at oppositesides thereof and actuated thereby to swing toward and away fromavertical plane in which the axis of the shaft lies, and selected meansfor controlling said duplex pole-turning devices.

10. In a pole turning machine the combination with a chain shaft, ofspaced duplex, pole-turning devices supported on opposite sides of theshaft and actuated thereby to swing toward and away from a verticalplane in which the axis of the shaft lies, a clutch shaft and a pair ofclutches thereon for selective use with said duplex devices, a drum onthe clutch shaft, and flexible connections between said drum and turningdevices for swinging a selected device to operative position.

In testimony whereof I aflix my signature.

CHARLES S. NELSON.

